Faucet gasket



Sept. 6, 1932. v H, GABimELs, JR

FAUCET GASKET Filed Jan.. 5, 1931 INVENTOR, Jewry 6257122; J

TTORNEY Patented Sept. 6, l932 UNITED STATES HENRY GABBIELS, JR., OF LOSANGELES, CALIFORNIA FAUCET GASKET Application filed January 3, 1931.Serial No. 506,371.

This invention relates to faucets, and more particularly to what areknown as bib-cocks.

It is an object of the present invention to provide a faucet closurestem having, in combination, a peculiar, deformable washer opposeable toa complementary seat in the faucet chamber, and more particularly toprovide a washer with a rear face having an annular groove designed toform a void to allow the rearward deformation of the crowned bottom orefiective face of the washer or gasket as this is pressed to itsopposing seat.

The invention consists in certain advancements in this art as set forthin the ensuing tional objects and advantages, and whose construction,combination and details of means, and the manner of operation will bemade manifest in the description of the here- 2 with illustrativeembodiment; it being understood that modifications, variations andadaptations may be resorted to within the scope, principle and spirit ofthe invention as it is more directly claimed hereinafter. Figure 1 is aside elevation of a conventional faucet closure stem with its appliedclosure gasket.

Figure 2 is an axial section of the improved gasket detached.

Figure 3 is a side elevation of the detached gasket, and

Figure 4 is a plan of the top or grooved face of the gasket.

In its illustrated embodiment, the faucet stem 2, having the usual worm3 and handle 4, is provided with an end closure or rigid disc 5,recessed to form a shallow chamber for a circular washer or gasket 6 ofsuch diameter and thickness as to snugly fit in the recess provided inthe bottom of the closure or cup 5.

Such faucet washers are made of medium hardness rubber, so as toeffectively seat on an opposed closure seat 7, having a slight annular,raised lip or bead 8, onto which the disclosure and having, with theabove, addi-V resistance.

rubber gasket 6 is forced by the stem screw 3, when the stem is turned.Usually, the bottom or effective face of the gasket 6 is crowned orconvexed as at 6 and the top surface is flat and adapted to seat firmly0 against the bottom of the recess closure 5.

A feature of the present invention consists in the provision of anannular groove or chamber 9, surrounding the usual screw hole 10 for thefastening screw 11, Fig. 2. The 5 i annular groove 9 has a mean diametersomewhat less than the mean diameter of the opposed valve seat bead 8,so that when the closure 5 is forced down, the gasket face 6" meets therib 8 anddue to the designed deformation inwardly of the somewhathollowed body of the gasket 6, it will be seen that the water flow willbe effectively cut off without subjecting the gasket to an excess degreeof pressure, since the deformation of the gasket permitted by theannular chamber 9 allows the gasket to effectively and readily conformto the opposing seat bead 8 in shutting-off action.

The expert on rubber gaskets is aware that the so-called hard rubberwasher does not possess the desired degree of mobility, and tends towear and score while, on the other hand, a rather pureand soft rubberwill give way under the effect of hot water and tends to chatter whenthe valve is closed. In the present invention, the gaskets are made of arubber having a desired degree of rigidity to provide for length of lifeand the de sired degree of flexibility is secured by the provision ofthe cushion chamber or groove of the gasket. g

It is understood that the invention may be incorporated in washers ofeither the flat or crowned bottom face type. i

When the gasket is placed in the cup 5 and set by the screw 11 it sealsthe chamber 9 and pockets air which though allowing deformation of therubber still affords desirable T v f 1,875,438

The invention claimed is:

A deformable, rubber gasket, adapted to be seated in a faucet, stem-endcup which has a smooth imperforate gasket seat, said gasket having adeep annular groove in its face which seats in the cup part; wherebywhen the gasket is compressed it contracts the groove and forms thereinan air compression chamber acting to resist gasket deformation.

HENRY GABRIELS, J R. e

